Skip to main content

fftXMLFile

fftXMLFile = 1

Example​

procedure ConfigureXML(FileDef: TvxFileDef);
begin
  FileDef.FileType := fftXMLFile;
end;

Usage​

fftXMLFile selects the Velox XML file-definition engine, XML data-module type and application/xml media default.

Additional Technical Info​

fftXMLFile is ordinal 1 of TvxFileType. It selects TvxXMLFileEngine, module class TvxFileDefXML, data type fdtXMLFile, and MIME default application/xml.

Velox XML File Definitions can load XSD/schema information and map root/child content through configured data views. The enum itself specifies none of the document contract: root element, namespaces, schema version, element/attribute mapping, repetition, ordering, whitespace, nil handling and character encoding remain explicit design decisions.

Configuration and interoperability boundaries​

  • Match elements by namespace URI plus local name where the contract is namespace-aware; prefixes are aliases and may vary between documents.
  • Decide whether validation is required and which XSD/schema version is authoritative. Well-formed XML can still be invalid for the business mapping.
  • Distinguish absent elements, empty elements, xsi:nil, empty attributes and whitespace-only text.
  • External entities/DTD behavior is security-sensitive. Do not assume selecting the XML engine makes untrusted XML safe; constrain parser/resource access according to the deployed engine configuration.
  • application/xml does not add a charset parameter in the current method. XML declaration/BOM/transport rules and the configured file encoding determine decoding.
  • Request streams may currently be saved to a file before loading in the XML engine; engine selection does not promise streaming or bounded-memory behavior.

The example only selects configuration and was source-reviewed; no XML/XSD parse, entity, file, request-stream, runtime or image-function test was executed.

External references

Created 2026-07-15